Kwinana is an industrial area, with plenty of chimneys to pollute the air. Rockingham is further south, tho I won't classify it as a 'hole', it's not in the same class as Mandurah. Property prices are skyrocketing there though...
BTW, Bucket, welcome to Perth. If you're looking for a gov't type job, have a look here -
http://www.lgnet.com.au/
All the best to you....